enable traffic type on vmknics
* vmotion, management, faultToleranceLogging
* work around bug in rbvmomi 1.6
enable/disable NIOC
* enable/disable network resource management
  (aka the "shares" part of NIOC)
* add networkResourceManagementEnabled to dvswitch defined type
* fix 'require' buglet in vc_dvswitch provider
VMKNIC support

Support for vmknic creation, reconfiguration and delete
Merge pull request #93 from dscherer/vmknic

vmknic support
Merge pull request #96 from rbbrown/tb/esx_vmknic_type

enable traffic type on vmknics
Merge pull request #97 from rbbrown/tb/nioc

enable/disable NIOC